data-rel="back" not working after upgrading JQM from 1.2.1 to 1.4.5

data-rel="back" not working after upgrading JQM from 1.2.1 to 1.4.5

Hi,

We are in process of upgrading our project from JQM 1.2.1 to JQM 1.4.5. After upgrading, navigating to back page stopped working. Our project is in MVC and Back button is added as below in Layout page.

<a href="#" data-rel="back" data-role="button" data-inline="true">back</a>

data-rel=back supposed to ignore href value, and navigate back to previous page, right? It's not behaving in this way in JQM 1.4.5, it was working in JQM 1.2.1.

What am I missing here? Please someone help me to fix this...